public async Task <HttpResponseMessage <FileList> > PostFormData( )
{
//TODO: store the original filename along with the file.
if (!Request.Content.IsMimeMultipartContent( ))
{
throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
}
var provider = new LocalCacheStreamProvider( );
try
{
await Request.Content.ReadAsMultipartAsync(provider);
}
catch (Exception ex)
{
throw new WebArgumentException(string.Format("Invalid file upload request. Request: {0}", Request), ex);
}
var idMap = new FileList( );
try
{
string expectedType = Request.RequestUri.ParseQueryString( )["type"];
foreach (var entry in provider.RemoteToLocalFileNameMap)
{
string remoteFileName = entry.Key;
string localFileName = entry.Value;
string token;
if (!FileRepositoryHelper.CheckFileExtensionIsValid(remoteFileName, expectedType))
{
throw new PlatformSecurityException("Disallowed file type.");
}
using (var source = new FileStream(localFileName, FileMode.Open, FileAccess.Read, FileShare.Read))
{
token = FileRepositoryHelper.AddTemporaryFile(source);
}
idMap.Add(new FileListItem
{
FileName = remoteFileName, Hash = token
});
}
}
finally
{
// clean up the local files
foreach (var entry in provider.RemoteToLocalFileNameMap)
{
File.Delete(entry.Value);
}
}
return(new HttpResponseMessage <FileList>(idMap));
}